You can create additional licenses / users in your account at any time. The procedure is then as follows:
The user can log in immediately - he gets his password sent to the stored login email address.
The additional booking will be integrated into the current contract period and will be extended accordingly, if not cancelled.
The initial contractually agreed payment conditions also apply to the subsequent booking.
The new/increased price will be invoiced to you as soon as the license/user is created.
The invoice for the subsequent booking will be generated directly afterwards.